Instrument Panel Cluster (IPC)
INSTRUMENT PANEL CLUSTER (IPC)
| Refer to COMPONENT INDEX . |
The PCM sends activation signals to the IPC requesting that the IPC displays specific ESS system messages. The PCM can send several variations of the same signal to the IPC to provide different messages on the IPC. When required, the IPC will activate the following messages to the driver of the vehicle:
| EVIC MESSAGE | POSSIBLE CAUSE |
|---|---|
| S&S NOT AVAILABLE-SERVICE BATTERY VEHICLE SHUT OFF | Battery State of Charge (SOC) less than 70% |
| S&S NOT READY DRIVER SEAT BELT UNBUCKLED | Driver's seatbelt is unbuckled prior to an Autostop. |
| S&S NOT AVAILABLE DRIVER NOT DETECTED | Driver Presence Detection Module indicates driver's seat is unoccupied for applications with removable doors only. |
| S&S NOT READY DRIVER DOOR OPEN | Driver's door is open, prior or during an Autostop. Requires restart |
| S&S RESTART REQUIRED FAULT DETECTED | During an Autostop/Autostart, the ECM/PCM detects a DTC calibrated to be an Engine Start inhibit trigger. Repair DTCs and retest. |
| S&S NOT AVAILABLE SERVICE BATTERY | Main 12 Volt Battery does not successfully pass a load test or Battery is sulfated. Auxiliary Battery does not successfully pass a load test or Battery is sulfated. |
| S&S FAIL | During engine running, ECM/PCM detects a DTC calibrated to be an Engine Off inhibit trigger. Repair DTCs and retest. |
| S&S TO RESTART RELEASE PARK BRAKE | Park Brake active indication |
| S&S CANNOT AUTOSTART HOOD OPEN | Indicates hood is open. Inhibits Autostops while engine running. |
| S&S NOT READY PASSENGER DOOR OPEN | Passanger door is open, prior or during an Autostop. |
| S&S SHIFT TO PARK | Shifting into gear during an Autostop without pressing the clutch. (For MTX vehicles only). |
| S&S RECOVERY FAIL MESSAGE | This message is due to a loss of communication |
| S&S AUTO STOP ACTIVE | Indicates engine is off during an Autostop. |
| S&S NOT AVAILABLE PRESS CLUTCH OR SHIFT TO NEUTRAL-MENU | Shifting into gear during an Autostop without pressing the clutch. (For MTX vehicles only). |
| S&S RESTART REQUIRED | During an Autostop/Autostart, the ECM/PCM detects a DTC calibrated to be an Engine Start inhibit trigger. Repair DTCs and retest. |
| S&S NOT AVAILABLE BATTERY FAIL | Battery State of Health (SOH) State of Function (SOF) |
| S&S READY | All conditions correct for Stop/Start |
| S&S NOT AVAILABLE HOOD OPEN | Indicates hood is open. Inhibits Autostops while engine running. |
| S&S NOT AVAILABLE ACCELERATOR DEPRESSED | Vehicle speed below Autostopping threshold, brake pedal is pressed AND accelerator pedal is pressed. Inhibits Autostops while engine running. Initiates an Autostart during an Autostop. |
| S&S NOT AVAILABLE BATTERY CHARGING | Indicates that the Supplemental Auxiliary battery is below threshold for a given temperature. |
| S&S NOT AVAILABLE TOW AVAILABLE | When Tow/Haul mode is active, ESS is inhibited. Autostart is triggered if Tow/Haul Switch (if Equipped) is pressed during an Autostop. |
| S&S NOT AVAILABLE 4LOW ACTIVE | T-Case is in 4Wheel Low mode. Present on vehicles with T- Case (4Wheel Low). |
| S&S NOT AVAILABLE LOW FUEL | Low Fuel lamp on |
| S&S NOT AVAILABLE CABIN COOLING OR HEATING | Indicates HVAC demand via the CAN C Bus. |
| S&S NOT AVAILABLE MAX COOLING OR HEATING | When HVAC max button is pressed by customer. Indicates HVAC demand via CAN C signal. Inhibits Autostops while pressed. Triggers an Autostart if pressed during an Autostop. |
| S&S NOT AVAILABLE F DEFROST ACTIVE | Indicates Front Defrost active. Triggers an Autostart during an Autostop and inhibits Autostops if active during engine running. |
| S&S NOT AVAILABLE R DEFROST ACTIVE | Indicates Rear Defrost active. Triggers an Autostart during an Autostop and inhibits Autostops if active during engine running. |
| S&S NOT AVAILABLE TURNED STEER WHEEL | Indicates steering wheel is being turned. Inhibits Autostops if present during engine running. Triggers Autostarts if active during and Autostop. |
| S&S NOT AVAILABLE ENGINE TEMP HIGH | Indicates either coolant, or oil, or catalyst engine temperature is higher than calibrated threshold. Inhibits Autostops during engine running and triggers an Autostart during an Autostop event. |
| S&S NOT AVAILABLE ENGINE TEMP LOW | Indicates either coolant, or oil, or catalyst engine temperature is lower than calibrated threshold. Inhibits Autostops during engine running and triggers an Autostart during an Autostop event. |
| S&S NOT AVAILABLE DEF RGN | During engine running, ECM inhibits Autostops when Regen is active. |
| S&S NOT AVAILABLE TOO STEEP | Indicates grade above calibrated threshold to allow Autostop. Triggers an Autostart during an Autostop if grade threshold is above +7% or below -10%. |
| S&S NOT AVAILABLE OUTSIDE TEMP | Less than 10°F (-12°C) or greater than 110°F (43°C) |
| S&S NOT AVAILABLE ACC ACTIVE | Cancelled/disengaged Active Cruise Control (ACC) |
| S&S NOT AVAILABLE BATTERY PROTECTION | With the scan tool, verify that the Battery State Of Function (SOF) status is not "False." In order to allow the ESS Autostop, the Battery State of Function from the Intelligent Battery Sensor (IBS) must be above 7 |
The IPC receives bussed messages requesting ESS chime activation and ESS switch status information from the PCM using the CAN network.
For more diagnostic information. Refer to DIAGNOSIS AND TESTING .